Western Digital Caviar Blue 320GB SATA/300 7200RPM 8MB Hard Drive Western Digital Caviar Blue WD3200AAJS Hard Drive General Features: 320 GB storage capacity 7200 RPM spindle speed SATA/300 interface 8 MB buffer 8.9 ms average seek time 4.2 ms average latency 10.9 ms average write time Data Transfer Rate: up to 300 Mbps (buffer to host) WhisperDrive technology minimizes noise SoftSeek technology for more efficient operation